California Area Codes



Utility Telecom hosts limited California area codes that will allow your business to reach the right people with a local area code. Don’t let your business miss out on having a footprint in these major California regions listed below. For more information on area code availability and to receive a custom quote, leave your information below or give us a call at 877.377.7177!

415 – Greater San Francisco Area

The 415 area code is one of the three original area codes in The Golden State. Now, it covers Marin County and San Mateo County including major Bay Area cities like San Francisco, San Rafael, Daly City and more.

510 – East Bay Area

The 510 represents the East Bay Area, covering the Alameda County and western Contra Costa County. This area code includes major cities like Oakland, Fremont, Berkeley, Hayward and more.

408 – South Bay Area

The 408 represents the Silicon Valley, America’s Leading Venture Capital. This area code covers Santa Clara County and Northern Santa Cruz County including cities like San Jose, Sunnyvale, Santa Clara, and more. This area code will make your business look established in the Bay’s tech and business industries.

916 – Greater Sacramento Area

The 916 is also one of the oldest area codes in California, representing the Greater Sacramento Area. If you’re looking to reach clients in Sacramento, El Dorado, Yolo, Placer, and Sutter Counties of Northern California, then call us today and ask about our limited numbers.

310 – West Los Angeles

The 310 represents West Los Angeles and the South Bay of Los Angeles County. This area code will help you reach clients in the Carson, Beverly Hills, Culver City, El Segundo, Hawthorne, and the Greater Los Angeles Area. Los Angeles has a population of over 3 million residents and is the 2nd largest city in the U.S.

Contact us for a quote today!